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P.. GARLISLE.

APPARATUS FOR THE MANUFACTURE 0P HYDRATED SULPHUROUS ACID. No. 284,817. Patented Sept. 11, 1883.

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NITED. STATES PATENT Erica.

FREDERICK CARLISLE, OF NEWARK, N. J ASSIGNOR TO THE NATIONAL CHEMICAL MACHINE AND MANUFACTURING COMPANY, OF SAME PLACE.

APPARATUS FOR THE MANUFACTURE OF HYDRATED SULPHUROUS ACID.

SPECIFICATION forming part of Letters Patent No. 284,817, dated September 11, 1883.

' Application filed December 16, 1882. (No modd 4 To all wh0m-it fimy concern:

Be it known that I, FREDERICK CARLISLE, a citizen of the United States, residing in the city of Newark, county of Essex, and State of New Jersey, have invented certain new and useful Improvements in Apparatus for the Manufacture of Hydrated Sulphurous Acid, fully described and represented in the following specification and the accompanying drawings, forming a part of the same.

This invention relates to an improved construction for the condenser'and the furnace employed in such machines as are provided with a series of shelves over which water flows in contact with the sulphurous-acid fumes.

The improvement in the condenser consists in the construction ofthe shelves, and the improvement in the furnace consists in the construction of the sulphur-receiver, and the combination with it of an inlet air-pipe to furnish the oxygen required for the most efficient combustion.

The nature of the invention will be understood from the annexed drawings, in which Figure 1 is a vertical section at the center of a condenser and furnace provided with my improvement; and Fig. 2 is a side view of the condenser at right angles to the position shown in Fig. 1. Fig. 3 is an end view of shelf a, and Fig. 4a section of the same 011 line a: m in Fig. 3.

A is the shell of the furnace, having aplate, B, extending across its body inside, below the level of the door Z), to receive the charge of sulphur and form a retort. In the plate B is fitted an air-inlet pipe, C, which enters the furnace below the plate B and passes up through it far enough to prevent any outflow of sulphur. A gaspip'e, E, provided with burners d, is supplied beneath the plate B to heat it for the first melting of the sulphur, and openings d are formed. in the casing for lighting the burners and supplying them with air. From the combustion-chamber above the plate B a vapor-pipe, D, extends to the condenser F,which is usually formed of two-inch yellowpine planks bolted securely together in the shape of a square box, and supported upon legs G, so as to receive the vapor at one side a little above the bottom. A water-inlet, H,

- at the top admits the water for absorbing the gas, and an outlet; 1, at the bottom removes the liquid product as it accumulates at that point. An escape-pipe, J, at the top carries off the vapors that have passed through the condenser, and a similar pipe, K, may be placed at an equal distance on the opposite side to equalize the draft. The shelves are arranged horizontally to secure the slowestv possible movement of the descending watercurrent over them, and to further retard the movement of the water and to expose it more perfectly to contact with the sulphurous fumes the shelves are formed with transverse grooves or gutters, across which the water flows in its passage through the machine. To further divide the body of water the shelves are formed preferably of unplaned and roughly-sawed boards, having fibers projecting from their surface upon the ridges between the grooves.

The boards or shelves are lettered a a and the grooves e e, the spaces between the edges i of the shelves being marked 0 0. To secure a tortuous channel for the upward passage of the vapor, theshelves are arranged as shown in the section, a single broad shelf (having an opening between two of its edges and the sides of the condenser) being alternated with two narrower shelves in a continuous series from the top of the condenser-box to the space at the bottom, where the gas is admitted.

a are the wide shelves and a a the narrow ones which are secured to the sides of the condenser and arranged with a space, 0, between them, underneath the middle of the wider shelves, to. The gas-inletD is arranged beneath the middle of a wide shelf, a, placed at the bottom of the series, and the water-inlet H is similarly inserted in the top, over the middle of a wide shelf. The entering gas and water are therefore diverted toward the sides of the box F, whence they pass by the spaces 0 along the surfaces of the narrow shelves a to the cen tral opening, 0, between them, and similarly to the other shelves in the entire series. The water is necessarily obstructed by the numerous transverse grooves 6, all of which it has to cross in its progress through the machine, as well as by the rough surface of the spaces between the grooves. The horizontal position 3o sult.

As a result of these improvements, I find that my apparatus will acidulate more than twice the amount of water that any other machine of the same size will produce. The water, after absorbing the gas, falls into the bottom of the machine, whence it is drawn off by the pipe I into any suitable receptacle.

I11 the furnace I'secure the heat necessary to melt the charge of sulphur and to start the primary combustion by igniting the gas-jets d, which are turned off as soon as the vaporizing is established, and a great saving in fuel and time in operating the machine secured.

7 By the insertion of the air-pipe 0 through the bottom of the sulphur-retort I secure a perfect admixture of the air with the sulphur fumes and greatly increase and improve the combustion. The door b affords access to the sulphur-retort for supplying "the charge and renewing it when necessary, and any other feeding arrangements may be made that are found desirable. The object of the inlet-pipe C is obviously to inject air into the midst of the retort, and the pipe may therefore be constructed difl'erently without affecting the re- It may therefore be orignated inside the shell A, and receive its air-supply from the openings'd.

I am fully aware that various arrangements of perforated and imperforate shelves have been used in machines analogous to mine, and

I do not therefore claim the same, except as herein set forth.

The method of j oining the parts of e the box F and attaching the shelves and pipes I have not shown herein, as that does not constitute any part of my invention.

I claim- 1. The combination, with the imperforate shelves a a, of the grooves e, substantially as and for the purpose set forth.

2. In combination with a condenser for hydrating sulphurous acid, the furnace A, constructed with the air-inlet O, substantially as and for the purpose set forth.

3. The combination, with the sulphur-retort provided with an air-pipe, O, of the gas burners D, for starting the preliminary com bustion, as herein shown and described.

4. The combination, with a condenser for hydrating sulphurous acid, of shelves formed of rough or unplaned wood, and provided with grooves, as e, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

FREDERICK GARLISLE.

Witnesses:

THOS. S. CRANE, W. F. D. CRANE. 

